21376376

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4289}}^1$

素因数の和:4391

約数の個数: 32

約数和(自身を含む): 46332000

約数和(自身を除く): 24955624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4289, 4984, 8578, 17156, 30023, 34312, 60046, 120092, 240184, 381721, 763442, 1526884, 2672047, 3053768, 5344094, 10688188, 21376376]

約数ペア:

[(1, 21376376), (2, 10688188), (4, 5344094), (7, 3053768), (8, 2672047), (14, 1526884), (28, 763442), (56, 381721), (89, 240184), (178, 120092), (356, 60046), (623, 34312), (712, 30023), (1246, 17156), (2492, 8578), (4289, 4984)]